A/C malfunction
06-27-2019 | 11:02 PM
#1
Thread Starter
Junior Member
Joined: Mar 2016
Posts: 40
Likes: 2
From: Texas (DFW Area)
2011 GL450 & 2006 ML500
A/C malfunction
Hello MB family,
I just encountetred a maldunction with my a/c. The control appears as normal but there is no actual fan or air blowing. I checked the fuse and its good. What could be the cause?
I just encountetred a maldunction with my a/c. The control appears as normal but there is no actual fan or air blowing. I checked the fuse and its good. What could be the cause?
06-28-2019 | 07:34 AM
#3
Thread Starter
Junior Member
Joined: Mar 2016
Posts: 40
Likes: 2
From: Texas (DFW Area)
2011 GL450 & 2006 ML500
The fan does turn and so do all the pulleys. However, I'm not totally sure which is the a/c compressor. No air blows at all...it totally stopped blowing. I tried a few times and it doesn't appear to be intermittent.
06-28-2019 | 09:50 AM
#4
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,369
Likes: 407
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
Neither the engine fan nor the AC compressor affects whether the HVAC blower works.
The HVAC blower lives above the right front passenger's feet inside the dash. Google "removing w220 blower" to get more info.
How did you find which fuse controls the blower, and which did you test?
Failure of the electronic speed regulator (which is mounted on the blower) is probably the most common problem.
The HVAC blower lives above the right front passenger's feet inside the dash. Google "removing w220 blower" to get more info.
How did you find which fuse controls the blower, and which did you test?
Failure of the electronic speed regulator (which is mounted on the blower) is probably the most common problem.
06-28-2019 | 11:10 AM
#5
Thread Starter
Junior Member
Joined: Mar 2016
Posts: 40
Likes: 2
From: Texas (DFW Area)
2011 GL450 & 2006 ML500
Neither the engine fan nor the AC compressor affects whether the HVAC blower works.
The HVAC blower lives above the right front passenger's feet inside the dash. Google "removing w220 blower" to get more info.
How did you find which fuse controls the blower, and which did you test?
Failure of the electronic speed regulator (which is mounted on the blower) is probably the most common problem.
The HVAC blower lives above the right front passenger's feet inside the dash. Google "removing w220 blower" to get more info.
How did you find which fuse controls the blower, and which did you test?
Failure of the electronic speed regulator (which is mounted on the blower) is probably the most common problem.
AAHHHHH ok....I replaced one in our CLK430....
the fuse that I checked was F33 ( I believe)...I have to look at the diagram again.
